Shoe shank



, Nov. 29, 1927. 1,651,184

M. CHERNEY SHOE SHANK Filed Sept. 26, 1924 INVENTOR.

MAURICE UHERNEY.

BY v j 1 5/ Vflna ATTORNIEYS.

Patented Nov. 29, 1927.

UNITED STATES MAURICE onERnEY, or FAR ROCKAWAY, New YoRx} SHOE SI-IAITK.

Application filed September 26, 1924. Serial No. 740,053.

This invention relates to shoe shanks and metal strips particularly to the reinforcing for the arch portions of the same. Such reinforcement strips have tongues whichpierce the superposed layer. ofleather and are secured thereto by clinching the tongues thereto after theyhave passed through it. Such strips are usually stamped from sheet metal and'the tongues have heretofore been formed as stamped integral extensions of the end portions of the strips, but I have found that such tongues do not form a secure anchorage and that they soon become loosened from the leather layer to which they are attached.

An object of this invention is to provide an improved metal reinforcing strip for shoe shanks which may be produced by stamping the same from sheet metal with a minimum waste of stock material; with which a more effective and secure attachment to the super posed leather layer may be obtained; and which will be relatively simple, strong, and inexpensive. Various other objects and advantages will be apparent from the following description of an embodiment of the invention, and 'the novel features will be particularly pointed out hereinafter in claims. 7

In the accompanying drawing:

Fig. 1 is a bottom plan of a shoe shank having a reinforcing strip that is constructed in accordance with this invention;

Fig. 2 is a longitudinal sectional elevation of. the same, with the section taken substantially along the line 2-2 of Fig. 1;

Fig. 3 is a transverse sectional elevation of the same taken substantially along the line 33 of Fig. 2; and

Fig. 4 is a perspective of the reinforcing strip before its attachment to the leather layer.

In the illustrated embodiment of the invention, the metal reinforcing strip 1 is stamped of the usual size and shape from stock sheet metal, such as steel, and may be provided intermediate of its ends with .a

drawn corrugated bead or rib 2, arcuately curved as usual in such strips. The end portions of the strip arepractically flat, and from the interior of these flat portions 3 a plurality of integral tongues 4 are struck out upon one face so that the bases of the tongues will be located entirely within the boundaries of the flat end portions.

These togues are conveniently of tr iangu-' lar shape, and those at each end are arranged side by side with their bases oppositely arranged so that the apex of each aperture,

caused bythe striking out of the ton ues,

will be adjacent to the base of the other I tongue at its line of attachment to the strip. That is, when the tongues are struck out, they are bent in opposite directions until they are approximately normal to the surface of the flat end portion as shown iii-Fig. 4. The tongues along each side edge of the strip are preferabiy struck out in'the same direction; that is, the apexes of. the apertures formed when the tongues are struck out point in the same direction and oppositely to those along the other side edge.

I have found that when these tongues are driven through the leather layer 5 and the tip ends are clinched as shown in Fig. 2, the natural tendency during the clinching is for the tip ends to turn away from one another which forms a very secure and firm anchorage. In any event, whether the natural ten dency to turn is in one direction or the other, the turning will, because of the strikin out of the tongues at each end in opposite directions instead of the same direction, he opposite from one another at each end. If the tongues were struck out in the same direction, they would usually clinch in the same direction and thus soon become disengaged from the leather layer strip in the shoe. By striking the tongues in opposite directions they will, without attention, almost always if not always, clinch in opposite directions so that they cannot become disengaged from the leather strip by any flexure to which the leather strip or layer may be subjected.

I have also found that where, as heretofore, the tongues are struck out asintegral extensions of the edges of the strip, the flexure of the leather layer over the edges of the reinforcing strip will cause the loosening of the tongues from the leather which is objectionable. IVhere the tongues are struck out from the interior of the strip, the extension of the strip beyond the tongues will act as a ledge to prevent flexure of the leather layer at the points where the tongues enter it, and consequently there is practically no tendency for the tongues to become loosened or disengage'd from the leather layer.

With the tongues along each side edge struck out in opposite directions form those upon the other side edge, there is also obtained an anchorage diagonally lengthwise of the strip which provides a very secure attachment betwecn the reinforcing strip and the leather layer. When the tongues are struck out from the interior of the end p0rtions there is less waste or stock "sheet -niaterial than is the case Where the tongues are struckout as integral extensions 01" the edge portions. This is particularly true Where the sheet stock material comes in strips of the [desired Width, in Whichcase it is anerely necessary to cut the strips oii' at the desired lengths.

It Will be obvious that various changes in the details and arr'angeinents'of iparts, which have been herein described and illustrated for :the purpose of explaining the nature of the invention, may be made by those skilled in the art Within the -principle and-scope of :the invention, as expressed in the appended clai-ms.

I claim:

-1. A metal reinforcing strip for shoe shanks having a pair of spaced anchorage and the apex-of eachad-jacent the base of the other of that pair.

2. A metal reinforcing strip for shoe shanks ha-vinga pair ofspaced anchorage tongues struckout on one face from the interior-of each end portion,saidtonguesbeing triangular in shape, and attached :at their bases, 'the'tonguesof each'pair being sideiby side with the apex ofeachadjacent the'base of the otheref that pair, and the triangular which the tongues are struck pointingin the same direction and oppositely from those at the other side edge.

In Witness 'Whereof, I fliereunto subscribe my signature. 7 Y

MAURICE CHERNEY.

apertures ateach sideedgeof the-strip from 

